Called 3 dealerships $1000 to $1500 for tranny fluid change?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
23,900
Reaction score
55,067
Ram Year
14 Sport
Engine
5.7
Despite your ignorant posts, no RAM manual suggests such a thing.
Common sense has avoided you by the sounds of it. ;)
He's speaking the truth,and if anybody is the ignorant one it's you bud.
ZF reconmends servicing the 8 speed between 50,000 and 80,000 miles or every 8 years if you haven't hit the milege numbers.You might want to believe the outfit who builds the transmission,more then the outfit that's trying to suck you into buying a new vehicle every 3 years.
Stellentis has no interest in helping you prolong the life of your vehicle,as that hurts their bottom dollar,while ZF is more interested in keeping their decent rep,and if they reconmend servicing the 8 speed,you should probably believe them more then what your crappy owners manual tells you.
Good thing the owners manual doesn't tell you to jump off a cliff,:Big Laugh:
 

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
23,900
Reaction score
55,067
Ram Year
14 Sport
Engine
5.7
I just bought an AutoTechnica Aluminum Pan from RockAuto, which comes with a filter and gasket. I am filling it with the appropriate Amsoil fluid when I do mine. The pan was 91 bucks, and you can change the filter in it when the old one goes bad. That costs 47 dollars.

-Mike
Swap out the Amsoil for Valvolene Maxlife instead,Amsoil doesn't have the greatest of reps in the 8 speed.
 

Sherman Bird

Senior Member
Joined
Jun 28, 2019
Posts
3,115
Reaction score
6,783
Location
Houston, Texas
Ram Year
1998
Engine
5.2
Update: Local (non Ram dealership) garage that I trust changed the fluid today. I left the truck overnight with them & picked it up today. Taped the green instructions to the steering wheel so they couldn't miss it.

Drove the truck home (about a 15 minute moderate drive) and shifts were smooth. The guy who changed it said the old 56,000 mile fluid was fine ie not burnt or smelly or anything.

Side note: I picked up a new gasket from the parts counter at the Ram dealership and while I was there I asked if they did anything special to level the tranny during a transmission fluid change. He said "no, we just lift the truck up like normal." So this dealership probably has done lots of transmission changes the wrong way.
What were the instructions "instructing" them to do?
 

Curmudgeon

Senior Member
Supporting Member
Joined
Jul 22, 2017
Posts
1,596
Reaction score
4,848
Location
York, Pennsylvania
Ram Year
2014 1500 Laramie 4x4 QC, 3.21 rear, 8-speed
Engine
5.7L Hemi
What were the instructions "instructing" them to do?

I believe he is referring to the "Green Sheet" that @Wild one acquired and shared a while back. He also re-posted it in this thread in Post #65. ;)

IMG_3383 (2).JPG
 
Last edited:

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
23,900
Reaction score
55,067
Ram Year
14 Sport
Engine
5.7
What were the instructions "instructing" them to do?
The Rams are the only application that uses the 8 speeds and points the transmission at a fairly severe downhill angle.
With the fill plug located towards the back of the transmission,if you don't level the transmission,it runs a bit low on fluid,compared to every other application that uses the 8 speed,and basically has the transmission sitting level in the chassis.
It becomes an issue if you run the truck hard,as it'll basically pump the sump dry in the upper rpms.
Those are the instructions that come with a brand new truck specific 8 speed when bought through the dealer.
The generic instructions for servicing the 8 speed are geared towards the other applications that already have the transmission basically sitting level,and generally don't specify to level the transmission
 

Gwerner74

Senior Member
Joined
Aug 17, 2017
Posts
225
Reaction score
390
Location
NC
Ram Year
2015
Engine
Hemi 6.4
I believe he is referring to the "Green Sheet" that @Wild one acquired and shared a while back. He also re-posted it in this thread in Post #65. ;)

View attachment 574944
I understand from reading through this thread that this green sheet is for the 8 speeds, any special instructions like this needed for the 66RFE?
 

Grams

Senior Member
Joined
Oct 4, 2024
Posts
1,159
Reaction score
1,877
Location
Texas
Ram Year
2024 & 2015
Engine
6.7 Cummins & 5.7 Hemi
THis is how to interpret the “Lifetime” fluid in transmissions:

If and When the Original Fluid is left in the transmission, without change, to the point that the Transmission Dies….. THAT was the “Lifetime” of both.

Changing it at the minimum of 100K miles is my personal practice because I only “occasionally” tow with it.

However, if I towed frequently…or regularly towed heavy trailers….I’d cut that in Half and change it at 50K miles.

Same with axles/differentials.

Frequent changes are simple and cheap. Using an “evacuator” down the dipstick tube (if so equipped) …or opening the drain plug on the pan…. change the fluid Even If the Filter is not changed. But change both at 100K.

Just my 2-cents.
 

Gwerner74

Senior Member
Joined
Aug 17, 2017
Posts
225
Reaction score
390
Location
NC
Ram Year
2015
Engine
Hemi 6.4
THis is how to interpret the “Lifetime” fluid in transmissions:

If and When the Original Fluid is left in the transmission, without change, to the point that the Transmission Dies….. THAT was the “Lifetime” of both.

Changing it at the minimum of 100K miles is my personal practice because I only “occasionally” tow with it.

However, if I towed frequently…or regularly towed heavy trailers….I’d cut that in Half and change it at 50K miles.

Same with axles/differentials.

Frequent changes are simple and cheap. Using an “evacuator” down the dipstick tube (if so equipped) …or opening the drain plug on the pan…. change the fluid Even If the Filter is not changed. But change both at 100K.

Just my 2-cents.
I agree with your 2-cents, the peace of mind alone is worth it. I was at a local shop today getting an estimate for some other work, and I asked them to add the trans fluid and filter change to the estimate since I'm at 127K miles and owners manual says to do it at 120K. I figured it's already on the lift, I'd let them deal with the mess. Weirdly he tried talking me out of it, saying it's better on the 66RFE to leave the fluid alone unless it looks burnt. I've never had a mechanic try and turn down money on such a basic procedure.
 

Sherman Bird

Senior Member
Joined
Jun 28, 2019
Posts
3,115
Reaction score
6,783
Location
Houston, Texas
Ram Year
1998
Engine
5.2
I agree with your 2-cents, the peace of mind alone is worth it. I was at a local shop today getting an estimate for some other work, and I asked them to add the trans fluid and filter change to the estimate since I'm at 127K miles and owners manual says to do it at 120K. I figured it's already on the lift, I'd let them deal with the mess. Weirdly he tried talking me out of it, saying it's better on the 66RFE to leave the fluid alone unless it looks burnt. I've never had a mechanic try and turn down money on such a basic procedure.
Even mechanics are guilty of conclusion bias. Change the damned fluid somewhere else and let the idjit mechanic have a severe case of myopia!
 

Grams

Senior Member
Joined
Oct 4, 2024
Posts
1,159
Reaction score
1,877
Location
Texas
Ram Year
2024 & 2015
Engine
6.7 Cummins & 5.7 Hemi
I agree with your 2-cents, the peace of mind alone is worth it. I was at a local shop today getting an estimate for some other work, and I asked them to add the trans fluid and filter change to the estimate since I'm at 127K miles and owners manual says to do it at 120K. I figured it's already on the lift, I'd let them deal with the mess. Weirdly he tried talking me out of it, saying it's better on the 66RFE to leave the fluid alone unless it looks burnt. I've never had a mechanic try and turn down money on such a basic procedure.
THAT is poor advice he gave you for certain.

If the fluid appears “burnt”….. it’s, well, BURNT! and too late.

In decades-past, it was commonly advised to Either Change ATF frequently…or Never.
The logic (back then) was that if the ATF is frequently changed the mechanisms and seals would remain clean and soft/pliable. However, if the fluid was NOT changed regularly…. then “leave it alone”… as the seals will have become hard and deposits will have filled-the-spaces to allow the tranny to keep working as presently.

In 1988 I had the shop change the ATF in my 180K mile 1978 Ford F150 with C6 transmission. Within the week that transmission began slipping and failing to shift. It required rebuilding. The Transmission shop told me “Yeah, you should have been changing it every 50K miles….or left it alone.”

My lesson was learned. Ever since, I change it every 100K and never had any more transmission problems. (I keep cars ‘til I wreck ‘em. 250K - 330K is typical for me.)

Hope this helps others.
 
Last edited:

Gwerner74

Senior Member
Joined
Aug 17, 2017
Posts
225
Reaction score
390
Location
NC
Ram Year
2015
Engine
Hemi 6.4
In decades-past, it was commonly advised to Either Change ATF frequently…or Never.
The logic (back then) was that if the ATF is frequently changed the mechanisms and seals would remain clean and soft/pliable. However, if the fluid was NOT changed regularly…. then “leave it alone”… as the seals will have become hard and deposits will have filled-the-spaces to allow the tranny to keep working as presently.
Yep, that was pretty much the position he was taking. I'm going to find another shop to get the job done or just suck it up and do it myself in the driveway.
 

Maverik259

Junior Member
Joined
Dec 17, 2025
Posts
1
Reaction score
1
Location
Virginia Beach
Ram Year
2026
Engine
HO Hurricane
Love that this hasn’t changed across manufactures. I have the same transmission in my BMW M5 and X7 and a large reason why I chose Ram over ford. That 10 speed is garbage and ZF is the best around. however bmw also calls it a “lifetime” fluid and changing it is not on bmw service interval. However NOBODY follows that and thus I change it always around 50-60k miles based on how I drive. I also only use ZFs fluid.

I’m curious if the transmission is a straight up ZF or some hybrid that Mopar customized. I’m hoping it’s straight up ZF because I can source an aluminum pan that adds about another QT of fluid with the added bonus of better cooling.
 

Wild one

Senior Member
Joined
Jan 17, 2016
Posts
23,900
Reaction score
55,067
Ram Year
14 Sport
Engine
5.7
Love that this hasn’t changed across manufactures. I have the same transmission in my BMW M5 and X7 and a large reason why I chose Ram over ford. That 10 speed is garbage and ZF is the best around. however bmw also calls it a “lifetime” fluid and changing it is not on bmw service interval. However NOBODY follows that and thus I change it always around 50-60k miles based on how I drive. I also only use ZFs fluid.

I’m curious if the transmission is a straight up ZF or some hybrid that Mopar customized. I’m hoping it’s straight up ZF because I can source an aluminum pan that adds about another QT of fluid with the added bonus of better cooling.
The little 845 behind the Pentastar V6's is a Stellentis built 8 speed,but the 8HP70 / 8HP75 / 8HP90 and 8HP95 used behind the hemi's are all built by ZF. The 90 and 95 are only used behind the supercharged 6.2 Hellcat Hemi's,the 70 and 75 are used behind the naturally aspirated 5.7 and 6.4's
 

DILLIGAF

Senior Member
Canadian Forces
Joined
May 28, 2016
Posts
5,789
Reaction score
12,415
Location
Canada
Ram Year
2012
Engine
5.7
Only a f***!ng retard would say this should be left alone. This is at 85xxxkm, and its already building up sludge.

PPE pan, Maxlife , Custom Tune and a Zip Kit is a must if you plan on keeping your truck.


20231205_102328.jpg
20231205_115754.jpg
 
Back
Top